Date: Mon, 15 Dec 2008 04:46:03 -0700
From: "Jeff Coughlin"
Subject: 3.5m Night Log 20081214
                     Apache Point Observatory
                     3.5m Telescope Night Log
                     Sunday, December 14, 2008
                                                        ACTUAL
 ASTRONOMER     OBSERVER(S)              INSTRUMENT  START  FINISH
 --------------------------------------------------------------------
 R.Plotkin	R.Plotkin		 NICFPS      --:--  --:--
 T.Murphy	R.McMillan		 APOLLO	     --:--  --:--
 J.Bally	A.Ginsburg		 TSPEC	     --:--  --:--
  INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 UW13/R     17:57  00:00   1.4  4.6   0    0    0    0    0    0    0
 DD01/R	    00:00  01:00    0   1.0   0	   0    0    0    0    0    0
 CU05/R	    01:00  06:00    0   5.0   0    0    0    0    0    0    0
 note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialist: J. Coughlin
 Az Velocity Scale was 580.0, measured 582.1, 580.9; 581.5. Changed to
 581.0.
 DIS blue ion pump is running very high.
 At checkout, upon attempting a test slew, the dome failed to move and
 there was a telescope-dome collision. Problem was tracked to loss of
 power this morning, and problem was fixed by turning off dome control
 power, waiting one minute, then turning power back on.
 The sky was completely opaque for the entirety of the night, so we
 never opened despite being just under closure conditions for first
 half. Second half humidity rose and stayed above closure conditions.
 Some snow by 4am. We called it a night at 4:15am.
                      ------- FAILURE LOG -------
 PROG   INST   FAILURE MODE     TIME
      (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
              ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    33    25     18   293  (WNW)   5153   cloudy     dust
     17:00    32    25     30   270    (W)   2982 mstly cldy   dust
     18:00    31    24     21   266    (W)   2035   cloudy     none
     19:00    31    25     19   268    (W)   1756   cloudy     none
     20:00    30    25     21   270    (W)   1664   cloudy     none
     21:00    30    25     19   267    (W)   1559   cloudy     none
     22:00    30    25     21   267    (W)   1693   cloudy     none
     23:00    29    25     11   263    (W)   1736   cloudy     none
     00:00    30    26     15   244  (WSW)   1627   cloudy     none
     01:00    29    26     17   254  (WSW)   1734   cloudy     none
     02:00    29    28     14   255  (WSW)   1807   cloudy    humid
     03:00    30    29     21   212  (SSW)   1497   cloudy    humid
     04:00    30    30     18   254  (WSW)   1265   cloudy   lt snow
    Note: the wind was coming from the azimuth listed.
    The convention used is north=0 degrees, east=90 degrees.
    The dust count is particles > 1u per 0.1 cubic feet.
                             TELESCOPE STATUS
     Telescope drives operational. Current TCC version: 2.9.1
     Current TUI version: TUI 1.5.1